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All results from a given calculation for HCCOH (ethynol)

using model chemistry: LSDA/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/6-31G*
 hartrees
Energy at 0K-151.707334
Energy at 298.15K-151.707900
Nuclear repulsion energy58.028620
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at LSDA/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3627 3559 83.09      
2 A' 3442 3378 96.57      
3 A' 2282 2239 111.76      
4 A' 1199 1177 86.31      
5 A' 1117 1097 105.66      
6 A' 574 563 47.06      
7 A' 356 349 10.61      
8 A" 493 484 33.20      
9 A" 361 354 27.44      

Unscaled Zero Point Vibrational Energy (zpe) 6724.8 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 6599.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at LSDA/6-31G*
ABC
21.98997 0.32364 0.31894

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.115 0.000
C2 0.036 1.328 0.000
O3 -0.132 -1.180 0.000
H4 0.091 2.400 0.000
H5 0.748 -1.613 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 H4 H5
C11.21321.30202.28651.8826
C21.21322.51361.07353.0253
O31.30202.51363.58700.9800
H42.28651.07353.58704.0659
H51.88263.02530.98004.0659

picture of ethynol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 178.788 C1 O3 H5 110.369
C2 C1 O3 175.892
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.097      
2 C -0.179      
3 O -0.570      
4 H 0.200      
5 H 0.452      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.685 -0.938 0.000 1.929
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.529 -2.849 0.000
y -2.849 -11.619 0.000
z 0.000 0.000 -18.208
Traceless
 xyz
x -1.616 -2.849 0.000
y -2.849 5.749 0.000
z 0.000 0.000 -4.133
Polar
3z2-r2-8.267
x2-y2-4.910
xy-2.849
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.736 -0.118 0.000
y -0.118 5.525 0.000
z 0.000 0.000 1.466


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000